Lamp shade



p 27, 1938. J. A. KORENGOLD 2,131,442

LAMP SHADE Filed April 22, 1937 14 r TOE/VEY Patented Sept. 27, 1938UNITED STATES -LAMP SHADE I John A. Korengold, Chicago, Ill.

Application April 22,

Claims.

This invention relates to a certain new and useful improvement inlamp-shades and has for its primary object the provision, as a newarticle -of manufacture, of a lamp-shade uniquely formed and constructednot only for absorbing certain selected impinging light-rays andrefleeting other such rays for the production of a flood of light uponthe object without glare or eye strain, but also for intercepting andabsorbing stray rays in certain predetermined directions for preventingsuch rays from reaching the eye of the user.

And with the above and other objects in view, my invention resides inthe novel features of form, construction, arrangement, and combina tionof parts presently described and pointed out in the claims.

In the accompanying drawing,-

Figure 1 is a front elevational view of a lampshade constructed inaccordance with and embodying my present invention;

Figure 2 is an inverted plan view of the shade; and.

Figure 3 is a side elevational view of the shade, partly broken away andin section.

Referring now in more detail and by reference characters to the drawing,which illustrates a preferred embodiment of the present invention, theshade comprises a reflector body-portion A preferably of bowl-likeconformation molded preferably of translucent opal glass and impressedwith an over-all prismatic pattern, the outer face a of the body-portionA being provided with a preferably fused vitreous, dark-green coating,all for purposes presently more fully appearing and as best seen inFigures 1 and 3.

Forming preferably an integral part of the body-portion A and disposedcentrally of the per portion attachment-collar I provided with adiametrically enlarged annular bead 2 for retentive engagement with anyconventional type of lampshade holder, not shown. The collar I is.similarly formed of opal glass and is provided, upon its outer face b,with a preferably fused, vitreous or enamel coating 0 of black or othersuitable opaque color.

Likewise preferably forming an integral part of, and extendingdownwardly from the lower peripheral edge of, the body-portion A, is anannular rim 3 also constructed preferably of opal glass impressed with aprismatic pattern. and provided upon its exterior face d with an opaquepreferably black. fused, vitreous or enamel coating e.

up thereof, is an upstanding, neck-like 1937, Serial No. 138,328

In turn, preferably integral with, and extending along a portion only ofthe lower peripheral edge of, the rim 3, as best seen in Figure l, is adepending or downwardly presented segmental lip 4 constructed of greencolored glass, the inner face 1 of which is preferably frosted or dulledand the outer face I of which is coated wtih a preferably black opaque,fused vitreous or enamel layer 6, as best seen in Figure 3.

When the shade is installed for use about a suitable light source, therays emitted thereby which impinge upon the reflector body A arerefractively reflected from the prismatic surface thereof, a certainamount of the rays passing into and and being'partially absorbed in thegreen outer layer a, so that some light will pass out into the room andprovide a very subdued illumination of nearby objects. Other rays whichpass diagonally outwardly from the body A will impinge upon the rim 3and either be completely absorbed in the black outer coating 6 thereofor be reflected back into the shade. Finally, a certain amount of lightwhich passes diagonally beneath the peripheral edge of the rim 3 wouldordinarily reach the eyes of the user; such rays, however, areintercepted by the depending segmental lip 4, which may be readilyinterposed between the user and the light source. These intercepted rayswill be entirely absorbed in the dull colored material of the lip 4 andthe opaque coating e thereof, thus preventing any eye-strain or glarefrom such source.

In order that the present shademay be utilized with any suitably shapedconventional type of opaque, outer shell or metal spinning to provide anentirely non-translucent shade, I have provided the neck-like collar lwith an opaque coating b, which completely opaques any junctureline orgap betweensuch outer shell and the shade supporting housing or fixture.

k The shade may be economically and inexpensively constructed and hasbeen found exceedingly efficient in the performance of its intendedfunctions.

It should be understood that changes and modifications in the form,construction, arrangement, and combination of the several parts of thelamp-shade may be made and substituted for those herein shown anddescribed without departing from the nature and principle of myinvention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is,

a dull preferably neutral 5 through the opal glass portion thereof I ofthe body-portion, a segmental lip depending from the lower margin of therim, and an attachment-collar upstanding from the body-portion centrallyof its upper extremity, said rim and said collar each having an opaqueexterior coating,

3. As a new article of manufacture, a lamp shade of translucent materialcomprising a reflector body-portion, an annular rimdepending from thelower margin of the body-portion and provided upon its outer face withan opaque coating, and a segmental lip of bluish-green materialdepending from the lower margin of the rim.

4. As a new article of manufacture, a lampshade of translucent materialcomprising a reflector body-portion, an annular rim depending from thelower margin of the body-portion and provided upon its outer face withan opaque coating, and a segmental lip depending from the lower marginof the rim, said lip being formed of a bluish-green material andprovided along its outer face with an opaque coating.

5. As a new article of manufacture, a lampshade comprising a, reflectorbody-portion formed of translucent material, an annular translucent rimformed integrally with and depending from the lower margin of thebody-portion and having substantial thickness for refracting a materialportion of the light incident thereon, said rim further being providedon its outer face with an opaque coating and on its inner face with aprismatic pattern whereby the light rays incident on the inner face ofthe rim are re-directed, in part by reflection and in part byrefraction, into the lamp-shade away from the plane of the lowerperiphery of the rim, and a segmental lip integrally depending from thelower periphery of the rim and being also provided on its outer facewith an opaque coating. I

JOHN A. KORENGOLD.

